“In a bombing run over Kassel, Germany, Elmer Bendiner’s B-17 bomber was barraged by 20-millimeter shells which resulted in direct hits on their gas tanks. But none of the shells exploded. The next day, the maintenance chief found 11 shells inside the gas tanks, any one of which should have taken the plane down.  When they opened the shells, all were empty, except one.  In it was a hand-written note scrawled in the Czech language. Upon translation, they found it said, ‘This is all we can do for you now . . . Using Jewish slave labor is never a good idea.’“

– Elmer Bendiner, Fall of the Fortresses